Turner Sports and CBS Sports’ exclusive live coverage of the 2013 NCAA Division I Men’s Basketball Championship Regional Final on Sunday, March 31, on CBS delivered an average overnight household rating/share of 8.0/19, up 25% vs. last year’s 6.4/13, according to Nielsen.

Sunday’s first telecast window (2:15-4:30 PM, ET), which saw Michigan defeat Florida, earned a 6.2/16, up 17% from a 5.3/12 in 2012. The second telecast window (5:00-7:30 PM, ET), which featured Louisville beating Duke, registered a 9.4/21, up 21% from a 7.8/15 in 2012.

The overall 2013 NCAA Tournament average-to-date ratings in the metered markets are a 6.7/14, up 8% from a 6.2/13 in 2012.

Source: Nielsen Media Research, based on Metered Market data, Live +SD data stream. 3/19/13 to 03/31/13 vs. 03/13/12 to 03/25/12. 2013 averages based on weighted average of 4 telecast gross across CBS, TBS, TNT and truTV. Historical audiences, CBS 1991 through 2005 based on Live data. 2006 through 2010 based on Live + SD. 2003 based on CBS / ESPN average of First Round.